Improvement in machines for operating derricks



A. JACKSON. I MACHINE FO R OPERATING DERRICKS. N.1e9,9ee.

Patented Nov. 16, 1875..

NPETERS, PHQTO-L THOGRAFRER WASHINGTON D C UNITED STTES ATENT- OFFn-ve.

ANDREW JACKSON, or MonAwK VALLEY, CALIFORNIA.

lMPRQVEMENT-IN MACHINES FOR OPERATING DERRICKS.

Specification forming part of Letters Patent reference bein g had to theaccompanying drawings, making a part of this specification, in whichFigure l-is a perspective view. Fig. 2 is a section detached from thebalance of machine to more clearly show different parts.

In Fig. l, A is a sill, on which is pivoted or stepped the mast of craneB. G is a frame, firmly bolted to the sill. ()n the side pieces of theframe are firmly fixed the Windlassdrum D and the crank-shaft E. Toeither end of crank-shaft may be attached the waterwheel F, which isdriven by a jet of water from a hydraulic washingnozzle. The wheel,being revolved, gives motion to the drum through pinion I and spur-gearJ, and thus winds on the rope K, which is a part of the hoisting-tackleL. M is a brake, pivoted to the side of frame in such a position thatthe hook N will press against the widened rim 0 of the driving-Wheel F,and thus hold the load suspended by pushing back the arm M. This is moreclearly illustrated in Fig. 2. P is de vice employed in conveying thederrick from one place to another, the entire machine and crane beingeasily moved without taking down the crane. This is done by attachingthe block Q to some object of sufficient resisting force, as a tree, astump, or drill driven in the bedrock, as shown at R 5 then the rope Pis passed through the block Q, one end then passed through aperture S ofsill A, and tied, as shown at T. The other end of rope P is carried todrum D, and there made fast. ,The rope Kis then detached from drum. Acrank is then placed on shaft E, by turning which the machine is movedin the direction of R, carrying with it the foot of mast B, and it isonly necessary to adjust the guys of the crane, as oocasion requires,that the whole thing may be conveyed to any place required. V is anaperture, in which the rope is inserted whenit is desired to move themachine in the opposite No. 169,996, dated November 16, 1875;application filed May 22, 1875. l I

direction, or convey the machine the other end foremost. W is a socket,fixed on sill A to hold the foot of mast or pivot in proper position.

[n Fig. 2 is shown side piece of Windlassframe 0, with ratchetX forholdingon brake;

The brake has two arms, M and N, the arm M being kept in nearly avertical position,.and

near the side of the water-wheel, so that the jet of water may beinstantly diverted from the wheel when it is desired to hold the loadsuspended, and placed against the brake-arm M, which is constructed,first, with a face, a, suitable for engagement with the ratchet X;secondly, a face, 0, standing at right angles to the line of the jet;thirdly, a face, 0, somewhat inclined toward the wheel and from theratchet; fourthly, a face, 61, standing at same angles as face I);fifthly, face 0, with an inclination from the wheel and to the ratchet.In Fig. 2 is also shown a sectional view of the water-Wheel F, which isconstructed with eight radial paddles or floats, paddles with both sidesthe same shape, very thin at outer edge, thick enough to give sufficientstrength at inner edge or base, tapering in straight lines from inner toouter edge, as shown at Y. The rims of the water-wheel are extendedbeyond the paddles, or some distance farther from center of wheel, asshown at Z, to prevent the water from spattering about when dischargedfrom wheel, and to force it to go straight forward in almost a solidbody, thus securing a considerable washing effect at the same time thederrick is being operated. One of the rims of wheel at its outer edgeiswidened or flanged, to provide a surface for the brake to operate on.This is shown at 0, Fig. 1. The sill A is sloped or beveled at the ends,to facilitate dragging or sliding it over the ground.

This machine may be operated by any of the nozzles in use for hydraulicmining. Its operation is as follows: The device P being removed, andeverything properly adjusted, the block and tackle L is hitched towhatever it is desired to hoist. The man whose business it is to managethe nozzle in its gravelwashing turns the jet from the gravel-bank tothe water-wheel, which immediately acquires a rapid motion. The rope Kis wound on drum D, and the load hoisted. As soon as the load issufi'iciently elevated the man controlling the nozzle diverts it fromthe wheel to the brake-arm M. If the pressure is great, he applies it toface I); if not great, to face d, which forces back arm M, and drawsforward arm N, causing hook or shoe to press against frictionsurface O.Then the jet is directed to face 0, which, being oblique, causes thewater to glance or bound off sidewise, the reaction of which forces thearm M to engage with the ratchet X, and the jet is again sent to thebank to perform its work there. The crane is revolved on pivot at W,turning freely without changing or moving the operating machine. Theload is tripped and deposited where Wanted, and the man at the nozzle isagain called on, and he turns thejet again to the arm M. This time heapplies it to face 0, which is oblique,

but is inclined opposite to face 0, and forces the water to react insuch a way as to disengage arm from ratchet, and thus throw off thebreak, and the jet is again turned to the bank.

It will be seen that in this device the hoisting-crane with its entireweight, and also that of its load, is made to rest on the same sill theoperating machine is attached to, thus causing the machine to be firmlyheld to its place by the gravity of the object it is operating on. Thisis a very important part of this invention, especially when we considerthe advantages it affords when it becomes necessary to reset or move thederrick.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. The sill A, with beveled or slopedends, socket W, for pivot of the crane, the crane and Windlass, botharranged on the same sill.

2. The water-wheel F, with friction-surface or widened rim for thebrake, the rims extending farther from center of wheel than the paddlesY, paddles of similar shape on both sides, and thin at outer edge, asshown.

The brake with the arm M, having two right angles and two oblique faces,as herein shown.

ANDREW J AOKSON. Witnesses ABEL JACKSON, E. OULVER.

